$. Come up with a question to ask the other students in class. The question should use a ratio scale measure as a response. Think of a question that will not have too great of variability. X # of mals a day rel. f Percentile of 2. -07 28 100.0 2. -07 26 92-9 3. 10 11 36 24 85-7 2. -39 14 50.0 3. n3D28 3. 10-7 2+2+10+11+3-28 2+10+11+3= 26 104 1+3= 24 1(+3=14 3+0=3 11 Telf. t0 228=-36 3:28=-11 Percent ile 28=28x100 = 100-0 26: 28 x100=9292 2:28= .07 !! 28= 39 a. What is the n? n=28 24-28X100=85114=28x100%3D50.03-28x100=10-7 10 b. What is the mode? 2 C. What is the median? d. What is the mean? 2.61 Meani Sx2%3D10 4x2=8 =73 73-2.61 28 3 x 10-30 2x 11=22 1x3=D3 Median 4+125+1) %3D X-# of meals a day 3 | Frequency Distr ibution and Central Tendency- Riess 3. 41+*AN
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
The
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